Chapter 28 - Statistics- ** THIS WAS ON TEST**

Question 1

What is sensitivity?

Answer 1

the ability of a test to detect disease

Question 2

What is the calculation of sensitivity?

Answer 2

of true positives/ # True positives PLUS False negatives

True/ all positives and false negatives

Question 3

What is specificity?

Answer 3

the ability for a test to identify normalcy that there is NO disease

Question 4

What is the calculation of specificity?

Answer 4

True Negatives DIVIDED by the True Negative + False Positives

Question 5

What does True positive state?

Answer 5

the test indicates disease, test is correct

Question 6

What does True negative mean?

Answer 6

The test indicates normal, test is correct

Question 7

Whati s a false positive?

Answer 7

The test says there’s disease, the test is incorrect

Question 8

What is a false Negative

Answer 8

The test says its normal, the test is incorrect

Question 9

What is the positive predictive value?

Answer 9

How often negative study is correct

Question 10

How do we calculate the positive predictive value (PPV)?

Answer 10

True Positive DIVIDED by True Positive and False positive

Question 11

Whati s the NEGATIVE predictive value

Answer 11

how often negative studies are correct

Question 12

What is the calculations for the negative predictive value?

Answer 12

True Negative DIVIDED b The true negative + False Negative

Question 13

What is accuracy?

Answer 13

the percentage that ALL studies are correct

Question 14

How do we caclulate accuracy?

Answer 14

Total number of correct tests divided by the number of all studies.

Question 15

Accuracy lies between sensitivity and specificity.

T/F

Answer 15

True

Question 16

Accuracy lies between positive and negative predictive values

True / false

Answer 16

True

Question 17

What does the acronym “SNOUT” mean in regardes to sensitivity?

Answer 17

Sensitivity RULES Negative out

Question 18

What does the acronym “ SPIN” mean?

Answer 18

specificity rules positives in.

Question 19

What marking is on the horizontal axis of the grid?

Answer 19

The top squares

Question 20

What marking is on the vertical acis?

Answer 20

The study results

Question 21

How would I label my 4 squares?

Answer 21

A B

C D

Question 22

What letter does A mean in the grid?

Answer 22

True positive

Question 23

What letter does B mean in the grid?

Answer 23

False positive

Question 24

What letter does C mean in the grid?

Answer 24

False neagtives

Question 25

What letter does D mean in the grid?

Answer 25

True negatives

Question 26

The whole top row in the grid is ______ . positives or negatives?

Answer 26

positives

Question 27

The whole bottom row in the grid is _______. Positives or negatives?

Answer 27

Negatives

Question 28

What is the formula for accuracy?

Answer 28

A+D / A-D

Question 29

What is the formula for Sensitivity?

Answer 29

A/ A+C

Question 30

What is the formula for Positive predictive value?

Answer 30

A/ A+B

Question 31

What is the formula for negative predictive value?

Answer 31

D/ C+D

Question 32

What is the formula for specificity?

Answer 32

D/ B+D

Question 33

How do you remove any visible residue on a probe?

Answer 33

Soft cloth lightly dampened with mild soap.

Question 34

True or False

Sterile saline is an acceptable disinfectant?

Answer 34

FALSE, it is not